grammar Command;
cmd: cmdPart=ID opPart=ID argsPart=ID ;

ID:    ( 'A'..'Z' | 'a'..'z' | '_' | '-' | '$') ( 'A'..'Z' | 'a'..'z' | '_' | '-' | '$' | '0'..'9' )*;
WS : [ \t\r\n]+ -> skip;
